Improvement in knife-and-fork scourers



E. J. MARCH.

Improvement in Knife and Fork Scourers. No. 114,578, Patented May 9,1871.

`lllllllllll lmlllllll EZ/WMM L'TJJIWM dnitd Seite ELIEZER JEWETT MARSH, OF LEOMINSTER, MASSACHUSETTS.

Letters Patent No. 114,578, dated May 9, 1871..

IMPROVEMENT IN KNIFE-AND-FOR'K SCOURERS.

The Schedule referred to in these Letters Patent and making part of the same.

To all persons to whom these presents may come ycomposed of disks A of felt, arranged side by side upon horizontal shafts O or I).

The upper of the said rollers has another such roller or cylinder, E, of larger diameter, arranged alongside of it, so as to project down by one end of the lower roller, in manner as shown.

At each end ofthe seriesof disks of felt of theroller E there is a disk, la, of a harder or stiler material,

such as sole-leather or rawhide, one ofsuch disks l),

being directly between and against the two series of felt disks ofthe rollers A and E.

The roller B is also formed of disks of felt, with leather terminal disks b l1, the several disks being arranged together and on the shafts C D in manner as represented, and being held in place on such shafts by heads of metal c c fixed therein and disposed as shown in fig. 2.

This method of making the rollers renders them much preferable to rollers made of India-rubber tubes or cylinders, or cloth coated with India rubber and wound around the roller-shafts. Were it not for the sole-leather or rawhide terminal disks applied to the felt disks ofthe roller the latter, while in use, would soon become spread apart and broken down. A metallic terminal disk cannot. be used, as it would not wear down with the felt disks, and would be highly injurious in its action on a knife-blade. The rollers, when made of felt disks, with rawhide or leather terminal disks, are found to last longer and to operate to better advantage than when composed either wholly of felt or leather disks.

The lower roller-shaft is supported in bearings d d `in the sides of a trough or box, F, to hold the scouring-powder or material.

'lhe two shafts have connecting-gears GfH xcd on them, and the upper shaft is borne downward by two levers, I I, which are pivoted to standards e e erected on the box or trough.

Screws f f, provided lwith springs g g, to rest on the levers and against theshoulders of the heads of such screws, go down through the levers, near their front or free ends, and screw into standards h h erected in the trough.

Furthermore, the trough is provided with a clamparm, la, and screw l, arranged as shown, and there is a crank, m, fixed on the shaft of the lower roller.

The object ofthe additional or largest roller E, arranged and combined with the two cylinders A and B, as described, is to ed'ect the scouring of the back of the blade of a' knife while the opposite sides of such blade may be in the act of being scoured by the two cylinders A B. The saidl roller or cylinder E is also for use for scouring the parts ot' a fork, such as cannot conveniently be scoured by the other rollers or either of them.

' While revolving the crank while a knife-blade may be between the rollers A B and be drawn back and forth it will be scoured on its sides, and by pressing the back against the side -of the auxiliary roller such back nia'y also be cleaned at the same time.

I am aware of the scouring-machinel shown in the United States patent N o. 13,883,dated December 4,

1855, and therefore make no claim to such, or any part, combination, or arrangement of parts described in such patent.

I am also aware of the United States patent No. 27 ,773, and make no claim to any thing, combination, or arrangement of parts therein set forth.

I do not use, in the construction of my machine, two pairs of polishing-rollers, combined with mechanism to cause one pair to revolve in directions opposite to those-of the other pair; no1' do I use with such four rollers and their operative mechanism a Iifth roller of larger size. In my machine I employ three rollers only.

I therefore claim as a new manufacture- 1. The improved machine, constructed as described yor provided with the three rollers A B E only, ar-

ranged and combined with the two shafts C D and the connecting-gears, and to 'operate as set forth.,

2. In the knife-scouring machine, as described, the rollers as made-of theY series o'f felt and rawhide or leather disks a b, arranged together and with the shafts C D and metallic heads c e, as set forth.

' EL-IEZERJ. MARSH.

Witnesses:

R. H. EDDY, J. R. Snow. 

